'use strict';

const Service = require('egg').Service;
const {ObjectId} = require("mongodb");
class ArticleService extends Service {
  async find(id=null) {
    var db = this.app.mongodb;
    var res = await db.collection("article").find({_id:ObjectId(id)}).toArray();
    return res;
  } 
}

module.exports = ArticleService;
